Lemon Blueberry Whoopie Pies

Name: Lemon Blueberry Whoopie Pies
Prep time: 30 min
Cook time: 10 min
Total time: 40 min
Cuisine: American
Ingredients: 1/2 cup butter, softened; 1/2 cup sugar; 1 large egg, room temperature; 1 teaspoon vanilla extract; 1-1/4 cups plus 1 tablespoon all-purpose flour, divided; 1/2 teaspoon baking powder; 1/4 teaspoon baking soda; 1/4 teaspoon salt; 1/4 cup buttermilk; 1 cup fresh or frozen blueberries; 2 teaspoons grated lemon zest; 1/4 cup butter, softened; 1/4 cup cream cheese, softened; 1 tablespoon honey; 1 teaspoon grated lemon zest; 1/2 teaspoon vanilla extract; 1-1/2 cups confectioners' sugar